Vaata pühapäev, 10 september 2017 arhiivi

SIDC igapäevane bülletään päikese ja geomagnetilise aktiivsuse kohta

Välja antud: 2017 Sep 10 1230 UTC

SIDC ennustus

Kehtib alates 1230 UTC, 10 Sep 2017 kuni 12 Sep 2017
Päikesepursked ehk loited

M-class flares expected (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Warning condition (activity levels expected to increase, but no numeric forecast given)

10 cm voolAp
10 Sep 2017100006
11 Sep 2017095007
12 Sep 2017092007

Bülletään

Catania group 46 (NOAA active region 2673) continued to dominate solar activity. The largest flare was an M1.1 flare peaking at 13:53UT September 9. This region has currently reached the Western limb. Other regions on disk were stable or in decay while a new region has appeared from over the Eastern limb. As long as Catania group 46 has not fully disappeared over the Western limb, further M flares must be accounted for, with also a chance for an X flare remaining.

Associated to the M1.1 flare a CME was seen in coronagraph images. It is directed Westward and appears to be limited in angular extent and hence will not be influencing Earth.

The >10MeV proton flux has dropped below 1pfu during the period and is further approaching background values. Associated with the activity in Catania sunspot group 46 (NOAA region 2673), chances for renewed increases in proton fluxes remain, but are decreasing.

A positive polarity coronal hole in the northern hemisphere is starting to transit the central meridian and could influence solar wind conditions from September 13 onwards.

Solar wind conditions have been stable with solar wind speed around 550km/s, total magnetic field nominal at 4-5nT and Bz mostly positive. The slightly elevated solar wind speed is expected to persist over the next 24 hours and later decline towards nominal values. Geomagnetic conditions were quiet (local K Dourbes 0-2, NOAA Kp 0-1). Over the next days, quiet to unsettled geomagnetic conditions are expected.

Tänane hinnanguline rahvusvaheline päikeselaikude arv (ISN): 047, põhineb 17 jaamadel.

Päikese indeksid 09 Sep 2017

Catania Wolfi number///
10cm päikesevoog107
AK Chambon La Forêt004
AK Wingst003
Hinnanguline Ap003
Hinnanguline rahvusvaheline päikeselaikude arv069 - Põhineb 23 jaamal

Märkimisväärsete sündmuste kokkuvõte

PäevAlgusMaksLõppLokatsioonTugevusOP10cmCatania/NOAARaadiosignaalipursete tüübid
09105011041142S14W74M3.7SF46/2673III/2
09220423530041S07W74M1.1SF45046/2673II/2III/1

Andmed on esitanud Päikeseinfektide Andmeanalüüsi Keskus (Solar Influences Data Analysis Center)© - SIDC - Töötleb SpaceWeatherLive

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